About this item Sheep Leather, Velvet Liner, Insulation Cotton Supreme Material: Heated Mittens are made of high quality sheep leather and polyester battery pocket and velvet liner with insulation. That resists odors and the moisture wicking for the comfortable movement of hands, promote better sleep. Great for indoor and outdoor activities like work, sports, skiing, snowboarding, camping, hiking, hunting, snow fishing, cycling, skating, motorcycle. Heating Elements: Far Infrared Heating element covers all the back of hand including fingers for optimal heating performance. Day Wolf heated gloves keep you warm and comfortable, Ergonomically designed for the Outdoor and Indoor activities to ensure dexterity for maximum comfort and protection of your hands. It can be good for tired muscle patients. 7.4V 2200mAh Rechargeable Batteries: Heated gloves Include a pair of 7.4V 2200MAH rechargeable lithium polymer batteries lasts up to 6 hours. Long life of the batteries give you 4-5 hours of continuous warmth and comfort. Wind & Water Resistant & Fast Heating: IPX44 water proof and breathable polyester fabric with far infrared carbon fiber heating wire resistors, corrosion resistant, anti static, with Fast and High Efficient Heating, The heating can be get started in 30 seconds after you press the on/off button. If you have any question or problem regarding our product, Please feel free to contact us 24/7. Your 100% satisfaction is our first priority.